Running Head
WAN Card User Screens and Settings
SLIP LIM
The Slip Limit defines how many bits of wander the WAN port will tolerate before forcing a
frame slip. The options are 126 bits and 138 bits, which correspond to an older and a more
recent version of the specification, respectively.
Time Slot
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
* Shelves C and D not supported in this release
AIS/ALM
The AIS/ALM (Alarm Indication Signal/Alarm) setting allows you to specify the type of
"keep-alive" signal the system will generate on one T1/E1 link if the other one fails. The
AIS/ALM setting depends on the Frame Format selected for this WAN card. Table 9-5 shows
the AIS/ALM settings for cross-connect systems.
9-24
Table 9-4. DS0-to-SLC-96 Time Slot Conversion
Shelf A
1
13
2
14
3
15
4
16
5
17
6
18
7
19
8
20
9
21
10
22
11
23
12
24
SLC Channel Number
Shelf B
Shelf C*
25
49
37
61
26
50
38
62
27
51
39
63
28
52
40
64
29
53
41
65
30
54
42
66
31
55
43
67
32
56
44
68
33
57
45
69
34
58
46
70
35
59
47
71
36
60
48
72
Model No.
WAN Card
Shelf D*
73
85
74
86
75
87
76
88
77
89
78
90
79
91
80
92
81
93
82
94
83
95
84
96
System Cards